D-Link DGS-3420-28TC – 24-Port Gigabit xStack L2+ Managed Stackable Switch with 4 × 10G SFP+ Uplink Ports
Overview:
• The D-Link DGS-3420-28TC is an xStack L2+ Managed Stackable Gigabit Switch designed for SMBs, enterprises, campus networks, service provider aggregation, Metro Ethernet, FTTB, CCTV backbone, and professional access layer deployments.
• It provides 20 × 10/100/1000BASE-T Gigabit RJ45 ports, 4 × combo 10/100/1000BASE-T/SFP ports, and 4 × 10G SFP+ uplink ports for flexible copper, fiber, and high-speed backbone connectivity.
• The switch belongs to the DGS-3420 Series, delivering high Gigabit port density, Gigabit SFP support, 10-Gigabit SFP+ uplinks, advanced Layer 2+ features, security, multi-layer QoS, IPv6 support, OAM, and redundant power support.
• It supports physical stacking up to 12 units, virtual stacking up to 32 units using D-Link Single IP Management, and up to 40Gbps full-duplex stacking bandwidth.
• The DGS-3420-28TC delivers 128Gbps switch fabric, 95.24Mpps packet forwarding rate, 16K MAC address table, 2MB packet buffer, 13,000-byte jumbo frame, and IPv6 Ready Logo Phase 2 certification.
• It is suitable for enterprise aggregation, CCTV/IP surveillance backbone, SMB access networks, service provider aggregation, FTTB deployments, and managed networks requiring 10G uplinks, stacking, VLAN, QoS, ACL, OAM, and strong security.
Key Features:
• xStack L2+ Managed Stackable Gigabit Switch
• 20 × 10/100/1000BASE-T Gigabit RJ45 Ports
• 4 × Combo 10/100/1000BASE-T/SFP Ports
• 4 × 10G SFP+ Uplink Ports
• 128Gbps Switch Fabric
• 95.24Mpps Packet Forwarding Rate
• 16K MAC Address Table
• 2MB Packet Buffer
• Jumbo Frame up to 13,000 Bytes
• Physical Stacking up to 12 Units
• Virtual Stacking up to 32 Devices
• Up to 40Gbps Stacking Bandwidth
• D-Link Single IP Management
• Optional Redundant Power Supply Support via DPS-500
• RJ-45 Console Port
• 10/100BASE-T Management Port
• Alarm Port and SD Card Slot
• IPv4 and IPv6 Support
• IPv6 Ready Logo Phase 2
• STP, RSTP, MSTP, ERPS, Loopback Detection, and Link Aggregation
• VLAN, 802.1Q, GVRP, Q-in-Q, MAC-Based VLAN, and VLAN Trunking
• Advanced QoS with 8 Queues per Port
• L2/L3/L4 Access Control List Support
• 802.1X, Web-Based Access Control, MAC-Based Access Control, RADIUS, and TACACS+
• IP-MAC-Port Binding, DHCP Snooping, ARP Spoofing Prevention, BPDU Attack Protection, and D-Link Safeguard Engine
• OAM Support with 802.3ah Ethernet Link OAM, DULD, PTP, Cable Diagnostics, CFM, and Y.1731
• Web GUI, CLI, Telnet, SNMP, RMON, sFlow, LLDP, DHCP Relay, Multiple Images, and CPU Monitoring
• D-Link Green 3.0 Technology
• 19-Inch Rack-Mount, 1U Design
• Temperature Controlled Smart Fan
Technical Specifications:
• Product Type: xStack L2+ Managed Stackable Gigabit Switch with 10G SFP+ Uplinks
• Brand: D-Link
• Model: DGS-3420-28TC
• Series: DGS-3420 Series
• Port Configuration: 20 × 10/100/1000BASE-T + 4 × Combo 10/100/1000BASE-T/SFP + 4 × 10G SFP+
• Gigabit RJ45 Ports: 20 Ports
• Combo RJ45/SFP Ports: 4 Ports
• 10G SFP+ Ports: 4 Ports
• PoE Support: Not Supported
• Optional Redundant Power Supply: DPS-500
• Console Port: RJ-45
• Management Port: 10/100BASE-T
• Alarm Port: 1
• SD Card Slot: 1
• Switch Fabric: 128Gbps
• Packet Forwarding Rate: 95.24Mpps
• Packet Buffer: 2MB
• MAC Address Table: 16K Entries
• IPv4 Routing Table: 1K Entries
• IPv6 Routing Table: 512 Entries
• IPv4 Forwarding Table: 2K Entries
• IPv6 Forwarding Table: 1K Entries
• Jumbo Frame Size: 13,000 Bytes
• MTBF: 293,446 Hours
• Acoustics: Max 48.9dB
• Heat Dissipation: 155.8BTU/hr
• Power Input: 100 to 240V AC, 50/60Hz
• Maximum Power Consumption: 44.9W
• Dimensions: 441 × 310 × 44mm
• Weight: 4.12kg
• Ventilation: Temperature Controlled Smart Fan, High Speed above 39°C, Low Speed below 36°C
• Operating Temperature: 0°C to 50°C
• Storage Temperature: -40°C to 70°C
• Operating Humidity: 10% to 90% RH
• Storage Humidity: 5% to 90% RH
• Emission Standards: FCC Class A, CE Class A, VCCI Class A, IC, C-Tick
• Safety Standards: CB, cUL, LVD
• Certification: IPv6 Ready Logo Phase 2
• Stackability: Physical Stacking up to 12 Units, Virtual Stacking up to 32 Devices, Duplex Chain/Ring Topology, Up to 40Gbps Stacking Bandwidth
• Layer 2 Features: 16K MAC Address Table, 802.3x Flow Control, HOL Blocking Prevention, Jumbo Frame up to 13,000 Bytes, IGMP Snooping, MLD Snooping, Loopback Detection, STP, RSTP, MSTP, BPDU Filtering, Root Restriction, Link Aggregation, Port Mirroring, RSPAN, L2 Protocol Tunneling, and ERPS
• Link Aggregation: Up to 32 Groups per Device, 8 Gigabit Ports or 2 × 10G Ports per Group
• L2 Multicasting: IGMP Snooping v1/v2/v3, up to 960 IGMP Groups, Port/Host-Based IGMP Snooping Fast Leave, MLD Snooping v1/v2, up to 480 MLD Groups, and Host-Based MLD Snooping Fast Leave
• VLAN Features: Up to 4K Static VLAN Groups, up to 255 Dynamic VLAN Groups, 802.1Q Tagged VLAN, 802.1v Protocol VLAN, GVRP, Double VLAN Q-in-Q, Port-Based Q-in-Q, MAC-Based VLAN, and VLAN Trunking
• Layer 3 Features: 256 IP Interfaces, Loopback Interface, IPv6 Tunneling, Proxy ARP, Gratuitous ARP, and VRRP
• Layer 3 Routing: 1K Routing Entries shared by IPv4/IPv6, up to 1K IPv4 Routes, up to 512 IPv6 Routes, 2K L3 Forwarding Entries, 256 IPv4 Static Routes, 128 IPv6 Static Routes, RIP v1/v2, RIPng, Policy-Based Routing, and Route Redistribution
• QoS Features: 802.1p QoS, 8 Queues per Port, Strict, WRR, Strict + WRR, CoS Based on Switch Port, VLAN, 802.1p Priority, MAC Address, IPv4/IPv6 Address, DSCP, Protocol Type, TCP/UDP Port, IPv6 Traffic Class, IPv6 Flow Label, User-Defined Packet Content, Remarking, Bandwidth Control, Flow Statistics, CIR, and Time-Based QoS
• Bandwidth Control: Port-Based and Flow-Based Ingress/Egress Bandwidth Control with 8Kbps Minimum Granularity
• ACL Features: Ingress ACL up to 6 Profiles and 256 Rules per Profile, Egress ACL up to 4 Profiles and 128 Rules per Profile, ACL Based on 802.1p Priority, VLAN ID, MAC Address, EtherType, IPv4/IPv6 Address, DSCP, Protocol Type, TCP/UDP Port Number, IPv6 Traffic Class, IPv6 Flow Label, User-Defined Packet Content, ACL Statistics, and Time-Based ACL
• Security Features: SSH v2, SSL v1/v2/v3, Port Security up to 3328 MAC Addresses per Port/System/VLAN, Broadcast/Multicast/Unicast Storm Control, Traffic Segmentation, IP-MAC-Port Binding, ARP Packet Inspection, IP Packet Inspection, DHCP Snooping, DHCPv6 and NDP Snooping, D-Link Safeguard Engine, DHCP Server Screening, CPU Interface Filtering, ARP Spoofing Prevention, BPDU Attack Protection, Secure FTP, and NetBIOS/NetBEUI Filtering
• AAA Features: 802.1X, Port-Based Access Control, Host-Based Access Control, Dynamic VLAN Assignment, Web-Based Access Control, MAC-Based Access Control, Japan Web-Based Access Control, Microsoft NAP, Guest VLAN, RADIUS and TACACS+ Authentication, and 4-Level User Account
• Management Features: Web GUI, CLI, Telnet Server/Client, TFTP Client, ZModem, SNMP v1/v2c/v3, SNMP Trap, System Log, RMON v1/v2, sFlow, LLDP/LLDP-MED, BootP/DHCP Client, DHCP Auto-Configuration, DHCP Relay Option 60/61/82, DHCP Server, Flash File System, Multiple Images, Multiple Configurations, CPU Monitoring, Debug Command, SNTP, ICMPv6, DHCPv6 Client/Relay/Server, Trusted Host, MTU Setting, Microsoft NLB Support, and UDP Helper
• OAM Features: 802.3ah Ethernet Link OAM, D-Link Unidirectional Link Detection, IEEE1588 Precision Time Protocol, Cable Diagnostics, Connectivity Fault Management, and ITU-T Y.1731
• Green Features: Power Saving by Link Status, Cable Length Detection, LED Shutoff, Port Shutoff, System Hibernation Mode, and 802.3az Energy Efficient Ethernet
• Optional Management Software: DV-600S, DV-600P
• Optional SFP+ Transceivers: DEM-431XT, DEM-431XT-DD, DEM-432XT, DEM-432XT-DD, DEM-433XT, DEM-433XT-DD, DEM-434XT, DEM-435XT, DEM-435XT-DD, DEM-436XT-BXU, DEM-436XT-BXD
• Optional SFP Transceivers: DEM-310GT, DEM-311GT, DEM-312GT2, DEM-314GT, DEM-315GT, DEM-330T, DEM-330R, DEM-331T, DEM-331R, DEM-211, DEM-210, DEM-220T, DEM-220R, DGS-712
• Optional DAC Cables: DEM-CB100S, DEM-CB300S, DEM-CB700S
• Optional RPS: DPS-500 / DPS-500DC
• Ordering Option: DGS-3420-28TC
Applications:
• SMB and enterprise access networks
• Campus network aggregation
• Metro Ethernet access networks
• FTTB and service provider aggregation
• CCTV and IP surveillance backbone networks
• Inter-cabinet fiber uplink connectivity
• Data center and server farm uplinks
• Triple-play services for voice, video, and data
• IPTV and multicast service environments
• Managed Gigabit access deployments requiring 10G uplinks
• Networks requiring stacking, VLAN, QoS, ACL, OAM, IPv6, and secure authentication
Connect Gates Recommendation:
• Connect Gates recommends the D-Link DGS-3420-28TC for projects that require a professional Gigabit Layer 2+ managed switch with flexible copper/fiber access and 10G uplink capability.
• It is a strong choice for enterprise networks, SMBs, campus deployments, CCTV backbone, Metro Ethernet, FTTB aggregation, and professional network cabinets.
• The 20 Gigabit RJ45 ports, 4 combo SFP ports, 4 × 10G SFP+ uplinks, 128Gbps switch fabric, physical stacking, virtual stacking, VLAN, QoS, ACL, OAM, and IPv6 support make it suitable for critical managed network deployments.
• For best performance, Connect Gates recommends using suitable SFP/SFP+ transceivers or DAC cables according to fiber distance, uplink design, and stacking topology, with DPS-500 RPS for higher uptime requirements.